Electrical stimulation controller



FIG. 1 is a top perspective view of the electrical stimulation controller.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is an end view thereof.

FIG. 5 is an opposite end view thereof.

FIG. 6 is a side view thereof; and,

FIG. 7 is an opposite side view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

The ornamental design for the electrical stimulation controller, as shown and described. 